In no particular order. 

Dervish, Doivid, Smiral, Drago, Jorick, Toellner, GoldMarble, Halo, Aza, scribz, Grif, Awson

E: fuck it, I go to 12 
Inserting Awson not for pity but because I was reminded of what an important role he plays in spam. 

There are others I left off and it was hard because I'm going off the top of my head by people who I either interact with a lot or just like to read their posts and they make me laugh.

I realize it says RPG members but that is a Spammer list. My RPG list would include people I RP with and talk to OOC. 

KuroTenshi, Igraine, RoadRash, ConstableWalrus, Justric, Lillian Thorne, and some others that aren't around anymore.